In 2017, 638 confirmed or probable cases of anaplasmosis (11.6 cases per 100,000 population) were reported in Minnesota, down slightly from the 733 cases reported in 2016.
- 385 cases (60%) were male.
- Median age of cases was 58 years (range, 2 to 97 years), 15 years older than the median age of confirmed Lyme disease cases.
- 65% of cases reported illness onsets in June and July.
- 165 (26%) cases were hospitalized at some point for their infection with a median duration of 4 days hospitalization (range, 1 to 34 days).
Charts and Graphs
- Reported Cases of Anaplasmosis in Minnesota
by Year, 1996-2017 (PDF)
Graph showing the number of reported cases of anaplasmosis in Minnesota by year.
Most anaplasmosis cases report likely exposure to blacklegged ticks in the same east-central and north-central Minnesota counties where the risk of Lyme disease is greatest.
- High Risk Areas for Tickborne Diseases in Minnesota
A map that shows counties of highest tickborne disease risk in Minnesota.
Annual Summary Statistics
- Anaplasmosis, 2016
Minnesota Department of Health, Disease Control Newsletter;
Annual Summary of Communicable Diseases Reported to the Minnesota Department of Health, 2016
- Anaplasmosis, 2015
- Anaplasmosis, 2014
- Anaplasmosis, 2013
- Anaplasmosis, 2012
- Anaplasmosis, 2011
- Anaplasmosis, 2010
- Anaplasmosis, 2009
- Anaplasmosis, 2008
- Anaplasmosis, 2007
- Anaplasmosis, 2006
- Anaplasmosis, 2005
- Anaplasmosis, 2004
- Anaplasmosis Statistics
Maps, charts, tables, and reports from the CDC.